1251454250453 has 32 divisors (see below), whose sum is σ = 1450966099968. Its totient is φ = 1066741804800.

The previous prime is 1251454250393. The next prime is 1251454250479. The reversal of 1251454250453 is 3540524541521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1251454250453 - 2⁸ = 1251454250197 is a prime.

It is a super-2 number, since 2×1251454250453² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1251454250453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251454250353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79870526 + ... + 79886192.

It is an arithmetic number, because the mean of its divisors is an integer number (45342690624).

Almost surely, 2^{1251454250453} is an apocalyptic number.

It is an amenable number.

1251454250453 is a deficient number, since it is larger than the sum of its proper divisors (199511849515).

1251454250453 is a wasteful number, since it uses less digits than its factorization.

1251454250453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17273.

The product of its (nonzero) digits is 480000, while the sum is 41.

Adding to 1251454250453 its reverse (3540524541521), we get a palindrome (4791978791974).

The spelling of 1251454250453 in words is "one trillion, two hundred fifty-one billion, four hundred fifty-four million, two hundred fifty thousand, four hundred fifty-three".